Home / 28,871.53-43,307.26-21,023.98

Finding the Fourth Proportional to 28,871.53, 43,307.26 and 21,023.98

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Solution

The fourth proportional to 28,871.53, 43,307.26 and 21,023.98 is: 31,535.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,871.53 : 43,307.26 = 21,023.98 : x
  2. Step 2: Convert to fraction form
    28,871.53/43,307.26 = 21,023.98/x
  3. Step 3: Cross multiply
    28,871.53x = 43,307.26 × 21,023.98
  4. Step 4: Simplify right side
    28,871.53x = 910,490,807.27
  5. Step 5: Solve for x
    x = 910,490,807.27/28,871.53
  6. Step 6: Final answer
    x = 31,535.94

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.